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</html><thumbnail_url>https://www.americanrivers.org/wp-content/uploads/2025/04/Rio-Costilla_NM_Comanche-Point-in-the-Valle-Vidal_Geriant-Smith-1-1024x683.jpg</thumbnail_url><thumbnail_width>1024</thumbnail_width><thumbnail_height>683</thumbnail_height><description>This year marks an important milestone for America&#x2019;s Most Endangered Rivers&#xAE;&#x2014; the 40th anniversary of the campaign that combines years of environmental action and grassroots mobilization. Each year, this campaign has highlighted ten rivers whose fate depends on the decisions we make today. Over the decades, together with our partners, we&#x2019;ve achieved significant changes to [&hellip;]</description></oembed>
